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https://github.com/pgvector/pgvector.git
synced 2026-07-11 07:06:57 +08:00
Updated function name
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@@ -34,8 +34,8 @@ CREATE TYPE vector (
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CREATE FUNCTION l2_distance(vector, vector) RETURNS float8
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CREATE FUNCTION l2_distance(vector, vector) RETURNS float8
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AS 'MODULE_PATHNAME' LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
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AS 'MODULE_PATHNAME' LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
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CREATE FUNCTION float4_l2_distance(float4[], float4[]) RETURNS float8
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CREATE FUNCTION l2_distance(float4[], float4[]) RETURNS float8
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AS 'MODULE_PATHNAME' LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
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AS 'MODULE_PATHNAME', 'float4_l2_distance' LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
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CREATE FUNCTION inner_product(vector, vector) RETURNS float8
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CREATE FUNCTION inner_product(vector, vector) RETURNS float8
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AS 'MODULE_PATHNAME' LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
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AS 'MODULE_PATHNAME' LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
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@@ -171,7 +171,7 @@ CREATE OPERATOR <-> (
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);
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);
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CREATE OPERATOR <-> (
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CREATE OPERATOR <-> (
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LEFTARG = float4[], RIGHTARG = float4[], PROCEDURE = float4_l2_distance,
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LEFTARG = float4[], RIGHTARG = float4[], PROCEDURE = l2_distance,
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COMMUTATOR = '<->'
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COMMUTATOR = '<->'
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);
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);
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@@ -54,21 +54,21 @@ SELECT vector_norm('[3e37,4e37]')::real;
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5e+37
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5e+37
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(1 row)
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(1 row)
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SELECT l2_distance('[0,0]', '[3,4]');
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SELECT l2_distance('[0,0]'::vector, '[3,4]');
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l2_distance
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l2_distance
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-------------
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-------------
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5
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5
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(1 row)
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(1 row)
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SELECT l2_distance('[0,0]', '[0,1]');
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SELECT l2_distance('[0,0]'::vector, '[0,1]');
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l2_distance
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l2_distance
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-------------
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-------------
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1
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1
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(1 row)
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(1 row)
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SELECT l2_distance('[1,2]', '[3]');
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SELECT l2_distance('[1,2]'::vector, '[3]');
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ERROR: different vector dimensions 2 and 1
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ERROR: different vector dimensions 2 and 1
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SELECT l2_distance('[3e38]', '[-3e38]');
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SELECT l2_distance('[3e38]'::vector, '[-3e38]');
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l2_distance
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l2_distance
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-------------
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-------------
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Infinity
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Infinity
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@@ -13,10 +13,10 @@ SELECT vector_norm('[3,4]');
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SELECT vector_norm('[0,1]');
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SELECT vector_norm('[0,1]');
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SELECT vector_norm('[3e37,4e37]')::real;
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SELECT vector_norm('[3e37,4e37]')::real;
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SELECT l2_distance('[0,0]', '[3,4]');
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SELECT l2_distance('[0,0]'::vector, '[3,4]');
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SELECT l2_distance('[0,0]', '[0,1]');
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SELECT l2_distance('[0,0]'::vector, '[0,1]');
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SELECT l2_distance('[1,2]', '[3]');
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SELECT l2_distance('[1,2]'::vector, '[3]');
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SELECT l2_distance('[3e38]', '[-3e38]');
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SELECT l2_distance('[3e38]'::vector, '[-3e38]');
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SELECT inner_product('[1,2]', '[3,4]');
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SELECT inner_product('[1,2]', '[3,4]');
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SELECT inner_product('[1,2]', '[3]');
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SELECT inner_product('[1,2]', '[3]');
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